package com.hotbitmapgg.studyproject.hcc.utils;

import android.annotation.TargetApi;
import android.app.Activity;
import android.os.Build;
import android.view.View;

/**
 * 控件NavBar显示隐藏的工具类
 */
public class ImmersiveUtil
{

    public static void enter(Activity activity)
    {

        if (Build.VERSION.SDK_INT >= 19)
        {
            ImmersiveUtil19.enter(activity.getWindow().getDecorView());
        }
    }

    public static void exit(Activity activity)
    {

        if (Build.VERSION.SDK_INT >= 19)
        {
            ImmersiveUtil19.exit(activity.getWindow().getDecorView());
        }
    }

    @TargetApi(19)
    private static class ImmersiveUtil19
    {

        private static final int FLAG_IMMERSIVE = View.SYSTEM_UI_FLAG_IMMERSIVE
                | View.SYSTEM_UI_FLAG_HIDE_NAVIGATION
                | View.SYSTEM_UI_FLAG_FULLSCREEN;

        public static void enter(View decor)
        {

            SystemUiVisibilityUtil.addFlags(decor, FLAG_IMMERSIVE);
        }

        public static void exit(View decor)
        {

            SystemUiVisibilityUtil.clearFlags(decor, FLAG_IMMERSIVE);
        }
    }
}
